Apple may have delayed the launch of its repeatedly rumored tablet line to incorporate newer parts that could include an OLED touchscreen, a purported leak claims today. While an often mentioned 10.6-inch version with an LCD is still deemed on tap, the entire line may have been moved to the second half of 2010 to accommodate a 9.7-inch OLED from LG Display. The company may be delaying the launch to wait for OLED prices to fall, as a panel costs $500 today where Apple could save $200 to $300 just by waiting several months.